LIVE FROM THE DATABASETRANSACTIONS 362,430COMPANIES 5,763LATEST TRADE Oct 16UPDATED Oct 17, 12:31 AM
MGNICIK 0001595974

MAGNITE, INC.

134 transactions by 17 insiders, from October 24, 2025 to October 12, 2026.

Transactions
13417 insiders
Bought · P
Nonenobody bought on the open market
Sold · S
$23.9Mopen market
Net
−$23.9Mnet selling

Officers and directors

People inside the company. What they do with their own shares is the reason this data exists.

InsiderTradesPlannedBoughtSold
Michael G. BarrettCEO2515/25—$13.6M
David BuonaseraCTO2112/21—$841K
Sean Patrick BuckleyOfficer1912/19—$2.8M
Katie Seitz EvansOfficer113/11—$480K
David DayCFO10———
Aaron SaltzGC8———
Paul CaineDir76/7—$1.0M
Adam Lee SorocaChief72/7—$258K
Brian GephartCFO6——$308K
Robert F. SpillaneDir5——$380K
Douglas S. KnopperDir55/5—$2.7M
Sarah Patricia HardenDir32/3—$1.2M
David T. PearsonDir22/2—$168K
Rachel LamDir2——$242K
Haas SullivanCAO1———
Diane YuDir1———
James RossmanDir1———

All transactions

134 in total, newest filings first.

InsiderDateCodeSharesPriceValue
Paul CaineDirOct 12SPLAN12,500$25.29$316K
Haas SullivanCAOOct 1A24,641$0.00—
Brian GephartCFOOct 1A64,682$0.00—
Paul CaineDirSep 17SPLAN7,500$26.50$199K
Douglas S. KnopperDirSep 17SPLAN37,337$26.28$981K
David BuonaseraCTOSep 14SPLAN1,165$24.00$28K
Robert F. SpillaneDirDERIVSep 14M10,363$0.00—?
Robert F. SpillaneDirSep 14S10,363$23.76$246K
Robert F. SpillaneDirSep 14M10,363$5.17$54K
David BuonaseraCTOSep 2SPLAN1,043$25.00$26K
David BuonaseraCTOSep 1SPLAN5,371$23.42$126K
Sarah Patricia HardenDirAug 28SPLAN18,436$24.00$442K
Sarah Patricia HardenDirAug 26SPLAN30,550$23.31$712K
Aaron SaltzGCAug 15F5,627$24.73$139K
Brian GephartCAOAug 15F3,789$24.73$94K
Katie Seitz EvansOfficerAug 15F11,204$24.73$277K
David DayCFOAug 15F14,170$24.73$350K
Paul CaineDirAug 14SPLAN7,500$25.00$188K
David BuonaseraCTOAug 15F8,102$24.73$200K
Sean Patrick BuckleyOfficerAug 18SPLAN2,759$25.00$69K
Sean Patrick BuckleyOfficerAug 17SPLAN8,271$24.31$201K
Sean Patrick BuckleyOfficerAug 15FPLAN11,715$24.73$290K
Michael G. BarrettCEOAug 15F10,404$24.73$257K
David DayCFOAug 13G26,258$0.00—
Rachel LamDirAug 10S10,000$24.16$242K
Brian GephartCAOAug 10S12,479$24.68$308K
Paul CaineDirAug 10SPLAN5,000$24.35$122K
Douglas S. KnopperDirAug 6SPLAN37,337$22.72$848K
Katie Seitz EvansOfficerDERIVAug 6MPLAN20,000$0.00—?
Katie Seitz EvansOfficerAug 6SPLAN20,000$24.00$480K
Katie Seitz EvansOfficerAug 6MPLAN20,000$5.16$103K
David BuonaseraCTOAug 6SPLAN871$25.00$22K
David BuonaseraCTOAug 6SPLAN2,602$24.00$62K
David BuonaseraCTOAug 6SPLAN4,176$22.81$95K
Sean Patrick BuckleyOfficerDERIVAug 6MPLAN28,703$0.00—?
Sean Patrick BuckleyOfficerAug 6SPLAN19,237$23.00$442K
Sean Patrick BuckleyOfficerAug 6SPLAN47,942$25.09$1.2M
Sean Patrick BuckleyOfficerAug 6MPLAN28,703$13.90$399K
Michael G. BarrettCEODERIVAug 6MPLAN293,968$0.00—?
Michael G. BarrettCEOAug 6SPLAN293,968$22.72$6.7M
Michael G. BarrettCEOAug 6MPLAN293,968$5.80$1.7M
Michael G. BarrettCEODERIVJul 15MPLAN38,596$0.00—?
Michael G. BarrettCEOJul 15SPLAN38,596$20.35$785K
Michael G. BarrettCEOJul 15MPLAN38,596$5.80$224K
Paul CaineDirJul 10SPLAN5,000$20.64$103K
David BuonaseraCTOJul 7SPLAN1,224$21.00$26K
Sean Patrick BuckleyOfficerJul 7SPLAN19,233$21.03$404K
David BuonaseraCTOJul 1SPLAN9,376$20.00$188K
Michael G. BarrettCEODERIVJun 29MPLAN75,000$0.00—?
Michael G. BarrettCEOJun 29SPLAN75,000$19.50$1.5M
Michael G. BarrettCEOJun 29MPLAN75,000$5.80$435K
Sean Patrick BuckleyOfficerJun 17SPLAN19,233$19.00$365K
Douglas S. KnopperDirJun 16SPLAN37,337$18.10$676K
David BuonaseraCTOJun 17SPLAN1,409$19.00$27K
David BuonaseraCTOJun 16SPLAN11,233$18.00$202K
David BuonaseraCTOJun 15SPLAN1,057$17.00$18K
Michael G. BarrettCEODERIVJun 16MPLAN100,000$0.00—?
Michael G. BarrettCEODERIVJun 15MPLAN178,596$0.00—?
Michael G. BarrettCEOJun 16SPLAN100,000$17.50$1.8M
Michael G. BarrettCEOJun 16MPLAN100,000$5.80$580K
Michael G. BarrettCEOJun 15SPLAN178,596$16.59$3.0M
Michael G. BarrettCEOJun 15MPLAN178,596$5.80$1.0M
Diane YuDirJun 8A13,798$0.00—
Robert F. SpillaneDirJun 8A13,798$0.00—
James RossmanDirJun 8A13,798$0.00—
David T. PearsonDirJun 10SPLAN10,766$15.65$168K
David T. PearsonDirJun 8APLAN13,798$0.00—
Rachel LamDirJun 8A13,798$0.00—
Douglas S. KnopperDirJun 10SPLAN10,766$15.73$169K
Douglas S. KnopperDirJun 8APLAN13,798$0.00—
Sarah Patricia HardenDirJun 8A13,798$0.00—
Paul CaineDirJun 8A13,798$0.00—
David BuonaseraCTOJun 1SPLAN1,409$15.00$21K
Robert F. SpillaneDirMay 19S10,000$13.33$133K
Aaron SaltzGCMay 15F5,627$12.82$72K
Brian GephartCAOMay 15F3,789$12.82$49K
Katie Seitz EvansPresMay 15F11,204$12.82$144K
David DayCFOMay 15F14,170$12.82$182K
David BuonaseraCTOMay 15F8,335$12.82$107K
Sean Patrick BuckleyPresMay 15F12,019$12.82$154K
Michael G. BarrettCEOMay 15F10,404$12.82$133K
Aaron SaltzGCFeb 15F12,761$11.70$149K
Adam Lee SorocaChiefFeb 18SPLAN21,529$12.00$258K
Adam Lee SorocaChiefFeb 15FPLAN18,933$11.70$222K
Brian GephartCAOFeb 15F6,149$11.70$72K
Katie Seitz EvansPresFeb 15F27,428$11.70$321K
David DayCFOFeb 15F30,617$11.70$358K
David BuonaseraCTOFeb 15F17,137$11.70$201K
Sean Patrick BuckleyPresFeb 15F26,942$11.70$315K
Michael G. BarrettCEOFeb 15F23,549$11.70$276K
Aaron SaltzGCDERIVJan 9M28,215$0.00—?
Aaron SaltzGCJan 9F15,026$16.17$243K
Aaron SaltzGCJan 9M28,215$0.00—
Adam Lee SorocaChiefDERIVJan 9M51,300$0.00—?
Adam Lee SorocaChiefJan 9F25,330$16.17$410K
Adam Lee SorocaChiefJan 9M51,300$0.00—
Katie Seitz EvansPresDERIVJan 9M51,300$0.00—?
Katie Seitz EvansPresJan 9F26,836$16.17$434K
Katie Seitz EvansPresJan 9M51,300$0.00—
David DayCFODERIVJan 9M72,675$0.00—?
David DayCFOJan 9F35,169$16.17$569K
David DayCFOJan 9M72,675$0.00—
David BuonaseraCTODERIVJan 9M22,935$0.00—?
David BuonaseraCTOJan 9F12,330$16.17$199K
David BuonaseraCTOJan 9M22,935$0.00—
Sean Patrick BuckleyPresDERIVJan 9M64,125$0.00—?
Sean Patrick BuckleyPresJan 9F30,369$16.17$491K
Sean Patrick BuckleyPresJan 9M64,125$0.00—
Michael G. BarrettCEODERIVJan 9M213,750$0.00—?
Michael G. BarrettCEOJan 9F109,742$16.17$1.8M
Michael G. BarrettCEOJan 9M213,750$0.00—
Aaron SaltzGCDERIVJan 1A22,115$0.00—?
Aaron SaltzGCJan 1A65,831$0.00—
Adam Lee SorocaChiefDERIVJan 1A25,801$0.00—?
Adam Lee SorocaChiefJan 1A76,803$0.00—
Brian GephartCAOJan 1A39,185$0.00—
Katie Seitz EvansPresDERIVJan 1A42,757$0.00—?
Katie Seitz EvansPresJan 1A127,273$0.00—
David DayCFODERIVJan 1A44,231$0.00—?
David DayCFOJan 1A131,661$0.00—
David BuonaseraCTODERIVJan 1A25,801$0.00—?
David BuonaseraCTOJan 1A76,803$0.00—
Sean Patrick BuckleyPresDERIVJan 1A42,757$0.00—?
Sean Patrick BuckleyPresJan 1A127,273$0.00—
Michael G. BarrettCEODERIVJan 1A90,909$0.00—?
Michael G. BarrettCEODERIVJan 1A122,864$0.00—?
Michael G. BarrettCEOJan 1A94,044$0.00—
Sean Patrick BuckleyPresNov 24SPLAN2,213$14.50$32K
David BuonaseraCTONov 15F7,129$14.15$101K
Sean Patrick BuckleyPresNov 18SPLAN4,426$13.36$59K
Sean Patrick BuckleyPresNov 15FPLAN11,642$14.15$165K
Michael G. BarrettCEONov 15F12,198$14.15$173K
David DayCFONov 15F13,197$14.15$187K
Paul CaineDirOct 24SPLAN5,000$20.00$100K